/* 样式可以根据需要进行自定义 */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    width: 300px;
}

.login-container h2 {
    margin-top: 0;
    text-align: center;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #666;
}

.form-group input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 3px;
}

.form-group input[type="submit"] {
    background-color: #007bff;
    color: #fff;
    cursor: pointer;
    border: none;
}

.form-group input[type="submit"]:hover {
    background-color: #0056b3;
}